In a system, changes in one part can control what goes on in the system as a whole. Which answer explains how different parts of a system can be interconnected?
A. The output from one part can become the input to other parts of the system.
B. The outputs of a system are never changed by the inputs of the system.
C. The outputs of a system always leave the system.
D. The inputs of a system always come from outside the system.

Sally, age 3 months, has a moist, red, vesicular rash on her cheeks, the backs of her hands, and her arms. her mother said sally was constantly trying to scratch the rash and often has difficulty sleeping. her father has a family history of allergic rhinitis and asthma. discussion questions. 1. review atrophic dermatitis from chapter 3 and discuss the pathophysiology of sally’s symptoms. 2. why is the father’s medical history significant, and what can sally expect as she grows up? 3. discuss the need to limit scratching, and describe practical methods to achieve this.